diff options
| author | Peter Zijlstra <[email protected]> | 2011-12-15 11:47:00 -0800 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2011-12-16 09:44:58 +0100 |
| commit | ab2789213d224202237292d78aaa0c386c7b28b2 (patch) | |
| tree | da6a28ca9a2eddad554742361e496764f17682a3 /net/lapb/lapb_subr.c | |
| parent | 75fc2d3797c47f5f70ca71c41c342c352845cd06 (diff) | |
sched: Fix select_idle_sibling() regression in selecting an idle SMT sibling
Mike Galbraith reported that this recent commit:
commit 4dcfe1025b513c2c1da5bf5586adb0e80148f612
Author: Peter Zijlstra <[email protected]>
Date: Thu Nov 10 13:01:10 2011 +0100
sched: Avoid SMT siblings in select_idle_sibling() if possible
stopped selecting an idle SMT sibling when there are no idle
cores in a single socket system.
Intent of the select_idle_sibling() was to fallback to an idle
SMT sibling, if it fails to identify an idle core. But this
fallback was not happening on systems where all the scheduler
domains had `SD_SHARE_PKG_RESOURCES' flag set.
Fix it. Slightly bigger patch of cleaning all these goto's etc
is queued up for the next release.
Reported-by: Mike Galbraith <[email protected]>
Reported-by: Alex Shi <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Signed-off-by: Suresh Siddha <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'net/lapb/lapb_subr.c')
0 files changed, 0 insertions, 0 deletions